US8547194B2 - Inductance module and base holder thereof - Google Patents

Inductance module and base holder thereof Download PDF

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Publication number
US8547194B2
US8547194B2 US13/482,522 US201213482522A US8547194B2 US 8547194 B2 US8547194 B2 US 8547194B2 US 201213482522 A US201213482522 A US 201213482522A US 8547194 B2 US8547194 B2 US 8547194B2
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United States
Prior art keywords
circuit board
inductance
joint portion
hook
opening
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Expired - Fee Related
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US13/482,522
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English (en)
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US20120319810A1 (en
Inventor
Hsiang-Yi Tseng
Ching-Hsiang Tien
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Delta Electronics Inc
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Delta Electronics Inc
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Assigned to DELTA ELECTRONICS, INC. reassignment DELTA ELECTRONICS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TIEN, CHING-HSIANG, TSENG, HSIANG-YI
Publication of US20120319810A1 publication Critical patent/US20120319810A1/en
Application granted granted Critical
Publication of US8547194B2 publication Critical patent/US8547194B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F17/062—Toroidal core with turns of coil around it

Definitions

  • the present disclosure relates generally to an inductance, and more particularly to an inductance module and a base holder thereof are provided to position an inductance element on a circuit board.
  • FIG. 1 is a perspective schematic view of a prior art inductance structure.
  • the prior art inductance structure is a lying-type structure of the inductance 10 .
  • the inductance 10 has a cyclic iron core 101 and a coil 102 , which is wound on the iron core 101 .
  • a coil-outgoing terminal 103 of the coil 102 passes through a through hole 201 of the circuit board 20 and electrically connects to the circuit board 20 .
  • a partition board 30 is inserted in a cyclic hole 104 of the iron core 101 of the inductance 10 .
  • the lying-type inductance 10 has the following disadvantages:
  • the conventional inductance 10 is directly electrically connected on the circuit board 20 , the height of fabricating the inductance 10 on the circuit board 20 is too high to minify and lighten the electronic apparatus;
  • the coil-outgoing terminal 103 of the conventional inductance 10 is not easily fixed by using only the circuit board;
  • an object of the present disclosure is to overcome the existing disadvantages of the conventional inductance structure.
  • An inductance structure of the present disclosure is designed to simplify the manufacture process, thus meeting the demand of reducing height after fabricating the inductance structure on the circuit board. Instead of using an adhesive to fix the inductance structure, positioning elements are designed like a barb to increase the force, thus reducing manufacture costs and working hours.
  • a coil-outgoing terminal of the coil of the inductance structure is directly electrically connected to the conductive pins to accurately fix the coil-outgoing terminal and the pin pitch thereof.
  • Another object of the present disclosure is to provide a height standard for easily checking whether a height of winding the coil on an iron core is too high or not by using the positioning elements.
  • a base holder is provided to position an inductance element.
  • the base holder includes a bottom base and a positioning element.
  • the bottom base has a containing portion with a containing space and an outer ring surface with an extending portion.
  • the positioning element has a girder portion and a wedging portion connected to the girder portion.
  • the girder portion is connected to the outer ring surface of the containing portion.
  • the wedging portion penetrates the containing space and clips the inductance element.
  • the inductance module includes an inductance element and a base holder.
  • the base holder has a bottom base and a positioning element.
  • the bottom base is installed on the circuit board and the bottom base has a containing portion.
  • the containing portion has a containing space and an outer ring surface with an extending portion.
  • the position element has a girder portion and a wedging portion connected to the girder portion.
  • the girder portion is connected on the outer ring surface of the containing portion.
  • the wedging portion penetrates the containing space and clips the inductance element.
  • FIG. 1 is a perspective schematic view of a prior art inductance structure
  • FIG. 2 is an exploded schematic view of an inductance structure according to a first embodiment of the present disclosure
  • FIG. 3 is a perspective schematic view of the inductance structure according to the first embodiment of the present disclosure.
  • FIG. 4 is a top schematic view of the inductance structure according to the first embodiment of the present disclosure.
  • FIG. 5 is a cross-sectional schematic view taken along line 5 - 5 of FIG. 4 ;
  • FIG. 6 is a cross-sectional schematic view according to a second embodiment of the present disclosure.
  • FIG. 7 is a cross-sectional schematic view according to a third embodiment of the present disclosure.
  • FIG. 8 is a cross-sectional schematic view according to a fourth embodiment of the present disclosure.
  • FIG. 9 is a cross-sectional schematic view according to a fifth embodiment of the present disclosure.
  • FIG. 2 and FIG. 3 are an exploded schematic view and a perspective schematic view of an inductance structure according to a first embodiment of the present disclosure, respectively.
  • the inductance module 100 is disposed on a circuit board 1 .
  • the inductance module 100 includes an inductance element 3 and a base holder 5 .
  • the base holder 5 has a bottom base 2 and a positioning element 4 .
  • the circuit board 1 has a circular opening 11 .
  • the opening 11 has two concave portions 12 , which are opposite to each other, and an idle-proof notch 13 around a peripheral edge thereof.
  • the circuit board 1 further has a plurality of through holes 14 adjacent to the opening 11 .
  • the bottom base 2 is fabricated in the opening 11 of the circuit board 1 .
  • the bottom base 2 has a containing portion 21 , an extending portion 22 , four conductive pins 23 , and a bump 24 .
  • the containing portion 21 has a containing space 211 therein and the inductance element 3 is contained in the containing space 211 .
  • a shape of an outer diameter of the containing portion 21 is identical to that of an inner diameter of the concave portion 12 as well as that of the opening 11 of the circuit board 1 .
  • the extending portion 22 is installed on an outer ring surface of the containing portion 21 to separate the outer ring surface of the containing portion 21 into an upper enclosure wall 212 and a lower enclosure wall 213 .
  • Each conductive pin 23 is L-shaped and the four conductive pins 23 are penetrated through selected positions, such as four corners of the extending portion 22 in this embodiment, and inserted into the corresponding through holes 14 of the circuit board 1 .
  • the bump 24 is disposed on the extending portion 22 and the lower enclosure wall 213 .
  • the containing portion 21 has a first surface 212 a on the upper enclosure wall 212 thereof.
  • a first fastening structure 216 is installed on the first surface 212 a to fasten the positioning element 4 .
  • the containing space 211 has a holding structure 217 , which is disposed on the lower enclosure wall 213 of the containing portion 21 , to hold the inductance element 3 .
  • the inductance element 3 has a substantially cyclic iron core 31 and a coil 32 , which is wound on the iron core 31 . Also, the iron core 31 has a cyclic hole 33 at the center thereof.
  • the first surface 212 a of the upper enclosure wall 212 has two coil-collecting slots 214 , which are opposite to each other, and two stops 215 , which are opposite to each other, are installed on the upper enclosure wall 212 and two sides of each coil-collecting slot 214 .
  • a coil-outgoing terminal 321 of the coil 32 passes through the coil-collecting slot 214 and electrically connects to the conductive pins 23 .
  • the positioning element 4 is ⁇ -shaped and has a girder portion 41 and a wedging portion 43 which is connected to the girder portion 41 .
  • Each terminal of the girder portion 41 has a second fastening structure 42 .
  • the second fastening structure 42 of the girder portion 41 is fastened to the corresponding first fastening structure 216 , thus connecting the girder portion 41 to the first surface 212 a of the containing portion 21 .
  • the wedging portion 43 has a first hook 44 and a second hook 44 ′. The first hook 44 and the second hook 44 ′ of the wedging portion 43 are penetrated in the containing space 211 and wedged on an inner cyclic surface 311 and a bottom surface 312 of the iron core 31 .
  • FIG. 4 and FIG. 5 are a top schematic view of the inductance structure according to the first embodiment of the present disclosure and a cross-sectional schematic view taken along line 5 - 5 of FIG. 4 .
  • the base holder 5 which is composed of the bottom base 2 and the positioning element 4 , is provided to contain the inductance element 3 .
  • the inductance element 3 is contained in the containing space 211 of the containing portion 21 and then the inductance element 3 is held through the holding structure 217 .
  • the wedging portion 43 penetrates through the cyclic hole 33 and then the first hook 44 and the second hook 44 ′ are wedged on the inner cyclic surface 311 and the bottom surface 312 of the iron core 31 .
  • the second fastening structures 42 which are disposed on two terminals of the girder portion 41 , are connected to the corresponding first fastening structure 216 . Accordingly, the inductance element 3 is fixed and the coil 32 is separated. Instead of using an adhesive to fix the inductance element 3 , the first hook 44 or the second hook 44 ′ of the positioning element 4 are designed like a barb to increase the force of positioning the inductance element 3 , thus reducing working hours and simplifying working process.
  • the coil-outgoing terminal 321 of the coil 32 is directly electrically connected to the conductive pins 23 to accurately fix the coil-outgoing terminal 321 and the pin pitch thereof.
  • the girder portion 41 of the positioning element 4 provides a height standard for easily checking whether a height of winding the coil 32 on the iron core 31 is too high or not. That is, the normal standard is met when the height of the winding the coil 32 on the iron core 31 is not to exceed the height of the girder portion 41 .
  • the lower enclosure wall 213 of the containing portion 21 and the bump 24 are installed in the opening 11 of the circuit board 1 and the idle-proof notch 13 , respectively, thus meeting the demand of reducing height after fabricating the inductance module 100 on the circuit board 1 .
  • the L-shaped conductive pins 23 are inserted into the corresponding through holes 14 to electrically connect to the circuit board 1 when the lower enclosure wall 213 of the containing portion 21 and the bump 24 are installed in the opening 11 of the circuit board 1 and the idle-proof notch 13 , respectively.
  • FIG. 6 is a cross-sectional schematic view according to a second embodiment of the present disclosure.
  • the major difference between the second embodiment and the above-mentioned first embodiment is that the inductance element 3 is wedged in the containing space 211 of the containing portion 21 through the first hook 44 and the second hook 44 ′ without using the holding structure 217 .
  • FIG. 7 is a cross-sectional schematic view according to a third embodiment of the present disclosure.
  • the bottom base 2 and the positioning element 4 are designed in integrated injection molding by a mold. Hence, the working hours would be reduced and the working process would be simplified to decrease manufacture costs.
  • the girder portion 41 of the positioning element 4 is directly connected on the first surface 212 a of the containing portion 21 .
  • the inductance element 3 is directly installed and wedged in the containing space 211 of the containing portion 21 through the first hook 44 and the second hook 44 ′.
  • FIG. 8 is a cross-sectional schematic view according to a fourth embodiment of the present disclosure.
  • the lower enclosure wall 213 of the containing portion 21 has a first joint portion 218 and a second joint portion 219 .
  • the first joint portion 218 is adjacent to the extending portion 22 and the second joint portion 219 is connected to the first joint portion 218 .
  • An outer diameter of the extending portion 22 is greater than that of the first joint portion 218 , and the outer diameter of the first joint portion 218 is greater than that of the second joint portion 219 .
  • a hole diameter of the opening 11 of the circuit board 1 is designed between the outer diameter of the first joint portion 218 and that of the second joint portion 219 , thus being able to install the first joint portion 218 on a surface around the opening 11 of the circuit board 1 .
  • the hole diameter of the opening 11 of the circuit board 1 is designed between the outer diameter of the extending portion 22 and that of the first joint portion 218 , thus being able to install the extending portion 22 on the surface around the opening 11 of the circuit board 1 . Accordingly, the height of fabricating the inductance module 100 on the circuit board 1 can be adjusted to meet the demand of fabrication space inside an electronic apparatus.
  • FIG. 9 is a cross-sectional schematic view according to a fifth embodiment of the present disclosure.
  • the bottom base 2 can be directly installed on the surface of the circuit board 1 without forming the opening 11 on the circuit when the height of installing the bottom base 2 on the circuit board 1 is sufficient.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
US13/482,522 2011-06-15 2012-05-29 Inductance module and base holder thereof Expired - Fee Related US8547194B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
TW100120868A TWI420546B (zh) 2011-06-15 2011-06-15 一種電感器模組及其基座
TW100120868A 2011-06-15
TW100120868 2011-06-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150061817A1 (en) * 2013-08-30 2015-03-05 Samsung Electro-Mechanics Co., Ltd. Coil component and electronic module using the same
US20190037714A1 (en) * 2017-07-31 2019-01-31 Wurth Electronics Midcom, Inc. Package for housing an electric or electronic component
CN110318976A (zh) * 2018-03-30 2019-10-11 株式会社丰田自动织机 车载用电动压缩机

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* Cited by examiner, † Cited by third party
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EP3500074B1 (en) 2013-06-10 2021-12-15 Schneider Electric Solar Inverters Usa Inc ELECTRONIC SYSTEM AND ITS TRAINING PROCESS
DE102015205762A1 (de) * 2014-04-04 2015-10-08 Yazaki Corporation Spulenbefestigungsstruktur
JP6525676B2 (ja) * 2015-03-31 2019-06-05 ヴィオニア日信ブレーキシステムジャパン株式会社 ブレーキ制御装置用チョークコイル
TWI553677B (zh) * 2015-04-08 2016-10-11 Yun-Guang Fan Thin inductive components embedded in the structure
JP6814105B2 (ja) * 2017-06-30 2021-01-13 株式会社豊田自動織機 インダクタンス素子及びｌｃフィルタ
CN110120292B (zh) * 2018-02-05 2022-04-01 台达电子企业管理（上海）有限公司 磁性元件的散热结构及具有该散热结构的磁性元件
EP3683811A1 (en) 2019-01-18 2020-07-22 Delta Electronics (Thailand) Public Co., Ltd. Integrated magnetic component
CN113923920B (zh) * 2020-07-09 2023-05-09 比亚迪股份有限公司 滤波模块和具有其的电子设备
CN115440477A (zh) * 2022-10-13 2022-12-06 湖南名巨电子科技有限公司 一体式线共模环形电感器及其封装方法

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US3191131A (en) * 1961-09-12 1965-06-22 Adams Electronics Inc Coil assembly
US4451867A (en) * 1981-09-28 1984-05-29 Imperial Chemical Industries Plc Electrically actuable ignition assembly
US5670924A (en) * 1996-04-18 1997-09-23 Caterpillar Inc. Inductor mounting assembly
US5929735A (en) * 1997-12-19 1999-07-27 Heinrich; Andrew L. Apparatus for facilitating mounting of an inductor assembly to a printed circuit board
US6144278A (en) * 1997-02-18 2000-11-07 Canon Kabushiki Kaisha Transformer assembling method, transformer, transformer-mounted substrate, power supply unit having transformer-mounted substrate, and recording apparatus including power supply unit
US6336818B1 (en) * 1998-12-11 2002-01-08 Continental Teves, Inc. Electrical connector for connection between coil and printed circuit board in automotive anti-lock braking system
US20050012413A1 (en) * 2003-05-30 2005-01-20 Siemens Aktiengesellschaft Electric machine with improved contacting feature

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TWI401706B (zh) * 2009-07-31 2013-07-11 Delta Electronics Inc 電感元件及其基座
TWM399419U (en) * 2010-07-21 2011-03-01 Top Victory Invest Ltd Transformer structure

Patent Citations (8)

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Publication number Priority date Publication date Assignee Title
US3191131A (en) * 1961-09-12 1965-06-22 Adams Electronics Inc Coil assembly
US4451867A (en) * 1981-09-28 1984-05-29 Imperial Chemical Industries Plc Electrically actuable ignition assembly
US5670924A (en) * 1996-04-18 1997-09-23 Caterpillar Inc. Inductor mounting assembly
US6144278A (en) * 1997-02-18 2000-11-07 Canon Kabushiki Kaisha Transformer assembling method, transformer, transformer-mounted substrate, power supply unit having transformer-mounted substrate, and recording apparatus including power supply unit
US6437673B1 (en) * 1997-02-18 2002-08-20 Canon Kabushiki Kaisha Transformer assembling method, transformer, transformer-mounted substrate, power supply unit having transformer-mounted substrate, and recording apparatus including power supply unit
US5929735A (en) * 1997-12-19 1999-07-27 Heinrich; Andrew L. Apparatus for facilitating mounting of an inductor assembly to a printed circuit board
US6336818B1 (en) * 1998-12-11 2002-01-08 Continental Teves, Inc. Electrical connector for connection between coil and printed circuit board in automotive anti-lock braking system
US20050012413A1 (en) * 2003-05-30 2005-01-20 Siemens Aktiengesellschaft Electric machine with improved contacting feature

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150061817A1 (en) * 2013-08-30 2015-03-05 Samsung Electro-Mechanics Co., Ltd. Coil component and electronic module using the same
US9490056B2 (en) * 2013-08-30 2016-11-08 Solum Co., Ltd Coil component and electronic module using the same
US20190037714A1 (en) * 2017-07-31 2019-01-31 Wurth Electronics Midcom, Inc. Package for housing an electric or electronic component
US10575419B2 (en) 2017-07-31 2020-02-25 Wurth Electronics Midcom, Inc. Package for housing an electric or electronic component
CN110318976A (zh) * 2018-03-30 2019-10-11 株式会社丰田自动织机 车载用电动压缩机
CN110318976B (zh) * 2018-03-30 2020-05-22 株式会社丰田自动织机 车载用电动压缩机

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US20120319810A1 (en) 2012-12-20
TW201250733A (en) 2012-12-16
TWI420546B (zh) 2013-12-21

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